16680127 has 4 divisors (see below), whose sum is σ = 16780176. Its totient is φ = 16580080.

The previous prime is 16680091. The next prime is 16680137. The reversal of 16680127 is 72108661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72108661 = 2549 ⋅28289.

It is a cyclic number.

It is not a de Polignac number, because 16680127 - 2¹⁵ = 16647359 is a prime.

It is a super-2 number, since 2×16680127² = 556453273472258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49774 + ... + 50107.

It is an arithmetic number, because the mean of its divisors is an integer number (4195044).

Almost surely, 2^16680127 is an apocalyptic number.

16680127 is a deficient number, since it is larger than the sum of its proper divisors (100049).

16680127 is an equidigital number, since it uses as much as digits as its factorization.

16680127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100048.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 16680127 is about 4084.1311193447. The cubic root of 16680127 is about 255.5052241634.

Adding to 16680127 its reverse (72108661), we get a palindrome (88788788).

It can be divided in two parts, 16680 and 127, that added together give a 5-th power (16807 = 7⁵).

The spelling of 16680127 in words is "sixteen million, six hundred eighty thousand, one hundred twenty-seven".